BSTJ 1: 1. July 1922: The Nature of Speech and Its Interpretation. (Fletcher, Harvey) (1922)
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lable articulation of 86 percent. The dotted curves show the per cent of the total speech energywhich is transmitted through the filter systems used in the articula-tion tests. These curves are derived from the results of Crandalland MacKenzie which were recently published.3 It will be seen that… … 1000 2000 3000 Freguency Fig. 8. WOO they carry practically none of the speech articulation. A filtersystem which eliminates all frequencies below 500 cycles per secondeliminates 60 per cent of the energy in speech; but only reduces thearticulation 2 per cent. A system which eliminates…
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